GrainSafe™ Dry (GSD) Development

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Last modified by Vanesa Zanzi Ferrando on 2019-12-12. This is a wiki so please feel free to update information by clicking on "Edit with form".

Project title

GrainSafe™ Dry (GSD) Development

Project country/region

☐ East Asia & Pacific
☐ Europe & Central Asia
☐ Latin America & The Carribean
☐ Middle East & North Africa
☐ North America
☐ South Asia
☐ Sub-Saharan Africa

Project organisation

International Rice Research Institute (IRRI), GrainPro, Inc., Hohenheim University, GIZ ‘Sustainable Energy for Food – Powering Agriculture’

Project description

In collaboration with the International Rice Research Institute (IRRI and the University of Hohenheim, GrainPro, Inc. have designed the GrainSafeTM Dry (GSD). The GSD combines in-store drying with hermetic grain storage. In-store drying aims to control the relative humidity of the drying air, so that all grain layers in the deep bed reach equilibrium moisture content. This is possible as a blower that runs on solar power, pushes warm air at the bottom of the device into the grain bulk until the desired humidity level is reached. In hermetic storage the grains are enclosed in an airtight container made from material with very low oxygen permeability, protecting the grains from insects and water reabsorption. Combining the in-store dryer with the hermetic storage properties allows drying and storing food in a protected environment. Including a drying controller allows increasing energy efficiency adapting the blower speed to the relative humidity. With a capacity of 1 to 5 tons of rice, and anticipated system costs of $ 1,100, the GSD still needs to be tested and optimized before a commercial prototype can be developed.

Project related to following sources of energy


☐ Biomass

☐ Biofuel

☐ Biogas

☐ Wind

☐ Geo-Thermal

☐ Hydro

☐ Energy Efficiency

☐ Other: /

Project primarily related to the following Commodity Groups


☐ Fruits and vegetables

☐ Nuts and berries

☐ Forage

☐ Dairy products

☐ Meat products

☐ Oil Seeds

☐ Roots and Tubers

☐ Eggs

☐ Pulses

☐ Fiber Crops

☐ Forestry

☐ Sugars

☐ Stimulants

☐ Spices

☐ Other: /

Project primarily related to the following Agricultural Value Chain Steps

☐ Mechanization

☐ Efficiency of Operation


☐ Transportation

☐ Controlled Atmosphere

Controlled Temperature

☐ Mechanical Sorting


☐ Other: /

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